20130385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7448495

約数列:

[1, 5, 11, 41, 55, 79, 113, 205, 395, 451, 565, 869, 1243, 2255, 3239, 4345, 4633, 6215, 8927, 16195, 23165, 35629, 44635, 50963, 98197, 178145, 254815, 366007, 490985, 1830035, 4026077, 20130385]

約数ペア:

[(1, 20130385), (5, 4026077), (11, 1830035), (41, 490985), (55, 366007), (79, 254815), (113, 178145), (205, 98197), (395, 50963), (451, 44635), (565, 35629), (869, 23165), (1243, 16195), (2255, 8927), (3239, 6215), (4345, 4633)]